7. The graph of a polar equation is given below. Select the polar equation for the graph. 5- 3 2 -4 2 3 4 5 O A. r = 2 sin(20) O B. r = 2 + cos(20) O C. r = 2 cos(20) O D. r = 24. A force of 5 pounds acts in the direction of 5 to the horizontal. The force moves an object along a straight line from the point {5, 4) to the point [1 B, 13}. with distance measured in feet. Find the work done by the force. Round the answer to one decimal place, if necessary. 0 A. 109.6 ft-Ib O B. I'EH ftlb Cl C. T813 ft-lb O D. 15.8 ft-lb 5. Find all the complex square roots of 144(cos 210' + / sin 210") in polar form. O A. 12(cos 105 + / sin 105 ), 12(cos 285 + / sin 285") O B. 12(cos 210' + / sin 2109), - 12(cos 195 + / sin 195") O C. 12(cos 210' + / sin 2109), 12(cos 195 + / sin 195") O D. 12(cos 105 + / sin 105), 195(cos 285 + / sin 2859)9. Two sides and an angle (SSA) of a triangle are given. Determine whether the given measurements produce one triangle, two triangles, or no triangle at all. Solve each triangle that results. Round lengths to the nearest tenth and angle measures to the nearest degree. B = 82, b = 3, a = 24 O A. Not a triangle O B. A = 410, C = 57', c = 27 O C. A = 40, C = 57', C = 29 O D. A = 42, C = 57', C = 3110. Select the representation that does not change the location of the given point. (9, 50) O A. (9, 4109) O B. (-9, 1409) O C. (9, 2309) O D. (-9, 4109)11. Use the dot product to determine whether the vectors are parallel, orthogonal, or neither. V = 4i + j, w = i - 4j O A. Neither orthogonal nor parallel O B. Not enough information O C. Parallel O D. Orthogonal12. A painter needs to cover a triangular region 62 meters by 66 meters by 74 meters. A can of paint covers 70 square meters. How many cans will be needed? O A. 28 cans O B. 14 cans O C. 317 cans O D. 3 cans2|]. A child throws a ball with a speed of 5 feet per second at an angle of 54 with the horizontal. Express the vector described in terms of i and 1'. If exact values aren't possible, round components to 3 decimals. O A. 2.939l + 4.345} O B. 4.045!" + 2.939j O C. 2.939H 4.045} O D. 4.045i 2.939j